I'm sure I'm not the only one this has happened too, but I just want to get an idea of how common this is.
How many of you have lost your campaign progress and achievement progress suddenly?
For me, when I first booted up the game, it asked me to adjust the brightness again, which I thought was weird. Then, when I went to check my achievement progress, all of the progress on the campaign was gone, all the collectibles, and the executions for the Judge, Jury, and Executioner achievement were reset as well.
I'm still able to continue from my latest campaign mission, but all of the achievement progress regarding the campaign (and the executions) are gone, so now I have to go back and redo 3 acts of the campaign on hardcore. (BTW, does beating the campaign on Insanity unlock the hardcore achievement as well?)
So yeah, how many people have this problem too?